Tianliangyou 682

Tianliangyou 682   Guoshendao 20186116

Early maturing, high lodging resistance, drought tolerance, strong rice quality

★ Main characters of the variety
Indica two-line hybrid rice varieties.
The whole growth period of double cropping late rice in the middle and lower reaches of the Yangtze River is 114.2 days, 4.2 days earlier than that of the control Wuyou 308. The plant height is 101.1cm, the spike length is 22.4cm, the effective spikes per mu are 178000, the total grains per spike are 166.8, the seed setting rate is 85.0%, and the 1000 grain weight is 27.4g. Main indicators of rice quality: head rice rate of 60.5%, chalky grain rate of 11.0%, chalkiness of 3.6%, amylose content of 14.2%, gel consistency of 68.0 mm, length width ratio of 3.2, reaching the third level of the standard of "Quality of Edible Rice Varieties" in the agricultural industry.

★ Adaptability
Yield performance: participated in the regional test of late indica early maturing group in 2015, with an average yield of 585.06 kg per mu, 3.25% more than the control Wuyou 308; In 2016, the average yield per mu was 603.81kg, 3.22% higher than the control Wuyou 308; The average yield of 594.44kg/mu in the two year regional test was 3.23% higher than that of the control Wuyou 308; In the production test in 2017, the average yield per mu was 612.12kg, 5.78% higher than the control Wuyou 308.
Resistance: the comprehensive index of rice blast in two years is 5.0 and 5.1 respectively. The loss rate of ear neck blast is the highest level, which is 7 grades. It is susceptible to rice blast and bacterial leaf blight, and has strong cold tolerance.

★ Main cultivation measures
1. Sow timely and cultivate strong seedlings. In the middle and lower reaches of the Yangtze River, double cropping late rice is generally sown around June 23. The seeding amount in the seedling field is 12.5 kg per mu, and the seed amount in the field is 1.5 kg per mu. It is sown thinly and evenly to cultivate strong tillers.
2. Planting early in time to promote tillering, and the seedling age should be controlled within 25 days. Transplanting specification 20cm × 20 cm, 2 grain rice seedlings are planted in each hole, and more than 80000 basic seedlings are planted per mu.
3. Re apply base fertilizer, apply topdressing as early as possible, and look at the fertilization method of supplementary ear fertilizer for seedlings in the later stage. In medium fertility soil, 10.5 kg of pure nitrogen, 6 kg of phosphorus pentoxide and 6.5 kg of potassium oxide are applied per mu. That is to say, when raking the field, 35 kg of 25% rice specific compound fertilizer shall be applied per mu, and 30~40 kg of silicon fertilizer with effective silicon content of 30~40% shall be added per mu as the base fertilizer. 5-7 days after planting, 6-7 kg of urea was topapplied, and 7.5 kg of potassium chloride was applied per mu at booting stage. After transplanting, the deep-water living stump can promote the tillering in shallow water during the tillering stage. The seedlings can fall into the water in time to dry the field again. Strong roots and strong stems can prevent lodging. Keep the field shallow from booting stage to heading stage. Dry, wet and strong seeds can be grown during the filling stage. It is forbidden to cut off water too early.
4. Disease and pest control. Persist in soaking seeds with strong chlorine. The rice planthopper was controlled by timely application of pesticides at seedling stage to prevent southern black streaked dwarf disease. In the field period, according to the disease and insect forecast, timely apply drugs to prevent and control the rice stem borer, rice planthopper, bacterial leaf blight, southern black streaked dwarf disease, sheath blight and other diseases and insect pests. In areas with low incidence of rice blast, special attention should be paid to the prevention and control of rice blast.

★ Suitable planting area
It is suitable to plant late rice in the lightly affected areas of double cropping rice blast in Jiangxi Province, Hunan Province, Hubei Province, Anhui Province, and Zhejiang Province, but not in the heavily affected areas.

★ Planting season
It is suggested to plant late rice in the middle and lower reaches of the Yangtze River from June 15 to June 25.
Please pay attention to sowing and scientific management according to the specific arrangements of local climate, previous crops, seedling raising mode and planting habits, and according to the accurate time guided by the local agricultural technology department.